Error 0x80050042

Value: -2147155902 | 0x80050042 | 2147811394

What does it mean ?

MCA_WARNING_REGISTER_FILE  
Machine Check Event reported is a corrected internal CPU register access error reported to CPU %1. %2 additional error(s) are contained within the record.
Value: 66 | 0x0042 | 0b0000000001000010

Where does it come from ?

FACILITY_MCA_ERROR_CODE  
Machine Check Architectures (Intel Pentium Pro and Itanium processors)
Value: 5 | 0x005 | 0b00000101

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